Researchers The University of Exeter, UK recorded the highest wild duck migration in the world. It flies through the 6800-meter-high Himalayan mountain air above sea level.
Based on satellite observations, a duck called ruddy shelduck or red duck duck is flying to their nesting place south of the Tibetan Plateau.
Rarely do wild ducks fly that high. Reported by the Journal of Avian Biology, ordinary ducks flying below 4,000 meters altitude. This condition is chosen given the oxygen levels that will shrink by 50 percent if it flies higher.
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Species with the Latin name Tadorna ferruginea, is a medium-sized Indian native. In Indonesia the duck is similar to the grouse. Their breeding areas spread from southeastern Europe to western China. Some wild duck populations are even commonly found in North Africa, such as Egypt and Tunisia.
"This is the first evidence that shows ducks capable of flying at extreme altitudes," says Nicole Parr, lead researcher at the University of Exeter Ecology and Conservation Center.
Researchers suspect, wild ducks have evolved by performing various adaptations so that they can breathe well in low oxygenated regions.
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Duck named ruddy shelduck is able to fly up to a height of 6800 meters. (PIXABAY)
In addition to the altitude record, new findings from the researchers are: wild ducks add to their heights in the air faster than the Anser Indicus goose.
Goose Anser Indicus is another avian species that can fly higher than wild ducks. Researchers noted, geese living in Central Asia that can fly at an altitude of 7290 meters.
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If viewed from the way of flying, both wild ducks and swans Anser is a poultry that fly by packing the most capable flying wings in the world.
The research data came from 15 wild ducks from two different populations. They have just spent their winter in the northern region of the Tibetan Plateau. They were flying back to the southern region to mate and lay their eggs.
In order to avoid the summit of Everest, wild ducks fly in circles at intervals of 5 thousand to 6800 meters. Although less high than the goose Anser, researchers say, the chance of wild ducks to fly higher still open.